i was lookin at the zapco ref500 amp to power one 12 inch RE SE sub. i recently saw that it is a class A/B amp. is this good or bad? is it better to have class D for the sub? if it would be better to have a class D for the sub, then any suggestions would be great. the sub is 600w dual 4 ohm, so i think i need around 500-600w at 2 ohms to power the sub. correct me if i'm wrong in saying that. but should i stay with the zapco or look at something else?? thanks in advance.
The Zapco 500.1 is a perfect amp to run for that sub.
To answer your class A/B to Class D question.. If your only pushing 600RMS my first choice would be a A/B amp. You'll notice in most cases the A/B have Higher SRN's, lower THD's and High Dampening factors over class D.
The class D is better for all out power use becuase of its more efficent power design. Now if you were into SPL and your trying to get as much power as you possibly could then a class D amp is much more likely your choice.. but i dont think thats your situation and thus you got a perfect amp in the A/B Zapco.
Contact me and ill see if i can get you a better deal on that Zapco amp than what your currently quoted at.
Class AB should be your first choice for both SQ and SPL. The only good thing about class D is, slightly cheaper price and less power useage. If your system can handle the power requirement, then AB all the way.
thanks guys. i was hoping to run one zapco ref500 and one zapco ref350. i have a 99 grand cherokee limited so i think someone had told me here before that i have a 135amp stock alternator. so i would think that can handle those 2 amps right? if i'm wrong please let me know. and any furthur input would be great.
A 135amp alternator should be able to handle up to 1000-1200watts.
So if your running the REF500.1 at 2ohm and the REF350.2 at 2ohm your looking at about 1700watts at there rated power. Its questionable wether or not to replace your alternator. Cost vs performance is always a big issue. If you want to spend the $500+ do so, if you dont mind a few dimming lights at night when you want to turn your system up past normal, then you should be fine.
well your looking at 1400 total watts vs 1700.. thats alot closer to your range.. i dont forsee that causing to much stress on your alt even when turned up past normal. You may see slight dimming of the lights but i wouldnt upgrade my alternator nor make plans to do so until you try it out first.
I don't think 99 grand cherokee limited came with 135A alternator. In fact I haven't seen any American made cars with an alternator greater than 90A. 75A is the average. I could be wrong, but the only car that came with 125A-135A alternator was BMW.
alright thanks a lot guys. yeah i didn't think i was running 1400 watts or whatever was said further up in this thread. but i guess maybe "technically" i am, depending on the volts or whatever. i really don't know how it works. i thought it would be around 900 watts or so, but i guess i'm wrong. thanks for all the help everyone, and if anybody has any further input, it is more than welcome.